Hi,
I have a geotiff dem. How can I get the height information given a pixel
coordinate? I tried to get the data using
gdErr = poDataset->GetRasterBand(1)->RasterIO(
GF_Read, 0, 0, poDataset->GetRasterXSize(),
poDataset->GetRasterYSize(),
pBits, bmi.Header.biWidth, bmi.Header.biHeight,
GDT_Byte,
1, nScanSize);
but the data is either 0 or 255.
What is the right way to do this?
Thanks & regards,
D. Jawahar
--
View this message in context:
http://osgeo-org.1560.x6.nabble.com/getting-height-from-Geotiff-DEM-tp5209506.html
Sent from the GDAL - Dev mailing list archive at Nabble.com.
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev
